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Introduction to Cohesive Zone and Modelling DCB Test using Cohesive Elements

Submitted by craime on

I am currently working on a project to model DCB test in ABAQUS. My current problem lies in understanding cohesive zone modelling. I was wondering if anyone can forward me a couple of  materials regarding the introduction of cohesive zones?

 This would help me understand the material greatly and help me in modelling the DCB test.

 Another question in ABAQUS:  how do you implement the material properties for cohesive elements? in particular, what values should i be using for them? e.g. E, G1, G2?

An Introduction Course on Mechanics

Submitted by Ji Wang on

 

We are currently offerring an introductory course on mechanics for junior students for all fields and subjects.  It is a so called general knowledge course for students to know more on certain subjects and fields before a decision on choice of a major is made.  Since the Mechanics Department in our University has not been popular for so long, we have decided to evangalize our field with more glorious history of Mechanics: Newton, Bernoulli, Euler, Clausius, Faraday, and Einstein.

Finalists for 2008 Robert J. Melosh Competition

Submitted by John E. Dolbow on

Six finalists for the 20th Annual Melosh Competition for the Best Student Paper in Finite Element Analysis have been announced.  They are:

Ludovic Chamoin, University of Texas at Austin

Irina Kalashnikova, Stanford University

Christian Linder, University of California, Berkeley

Ajaykumar Rajasekharan, Stanford University

Saurabh Srivastava, SUNY Buffalo

Tim Wildey, University of Texas at Austin 

Stress concentration at a corner of varying angles, mode I and mode II

Submitted by justin.babcock on
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I was looking at the stress concentration at a corner for both a mode I and mode II loading situation.

For reference, see: Carpenter, 1984. Mode I and mode II stress intensities for plates with cracks of finite opening. International Journal of Fracture. V. 26. 201-214. 1984.

The problem that is being addresses is the stress concentration found at a corner in an infine body as seen in the figure below. β=0...π.

you tube Video lectures on Finite element methods, Dynamics and Kinematics of machines by NPTEL India

Submitted by vikulp sharma on

Here is very good chain of full course lectures on - This will be very helpfull for someone new and beginner in this areas.

Finite element methods :- 

http://www.youtube.com/view_play_list?p=A4CBD0C55B9C3878

 Dynamics of machines:-

http://www.youtube.com/view_play_list?p=46AAEDA6ABAFCA78

 Advance strength of materials:-

Two Questions in Concrete Modeling

Submitted by m_meisam on

Dear  Friends

I've 2 questions:

1) I use abaqus cae for concrete modeling and how can I attech a file (subroutine/etc.) to my model?

2) which category I should use for concrete while making a part(shell/solid)? while I'm trying to make a section , only shell section have a rebar layer and solid section dont have this option! what should I do?

Regards

Meisam M.